while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
    $messages[] = $row;
    $a++;

    if($a!==1){
        $b = "style='display:none;'";
    } else {
        $b = "";
    }

    echo "<hr><div class='homeBlog'>";
    echo "<a href='javascript:toggleDivFast(\"msg-".$a."\")'><h3 style='margin-left:30px;'>".$row['title']."</a></h3>";
    echo "<h5 style='margin-left:30px; margin-bottom:20px; margin-top:-15px;'>from ".$row['sender']."</h5>";
    echo "<div id='msg-".$a."' ".$b." ><p>".stripslashes($row['message'])."</p>";

    echo "<a href='javascript:toggleDivFast(\"homeComments-".$a."\")'><h4 style='margin-left:60px;'>Comments</h4></a>";
    echo '<div id="homeComments-'.$a.'" '.$b.'">';
    echo displayComments($row['id']);

    $id_cmt = $row['id'];
    $usr = $_SESSION['user'];

    echo '<div style="margin:40px;">';

    echo '<form action="post_comment.php" method="POST" name="cmtForm-'.$a.'">';
    echo '<textarea style="width:100%; height:100px;" name="msg" placeholder="Comment here">This is a test</textarea>';
    echo '<input type="hidden" value="'.$id_cmt.'" name="id_cmt" />';
    echo '<input type="hidden" value="'.$usr.'" name="usr" />';
    echo '<input type="submit" value="Add comment" style="margin:0; width:100%; height:25px; font-size:12px; color:black; text-shadow:none; font-family:\'roboto\', sans-serif;" />';
    echo '</div></div></div></div>';
}